green



2 Sheets-Sheet 1.

Y (No Model.)

.J. H GREEN.

SAND DRIER.

} No. 555,001. Patented Feb. 18, 1896.

ANBREW aanmmmnmuumo WASHINGTDYLDQ (-No Model.) 2 Sheets-Sheet 2.

511555515. SAND DRIER.

No. 555,001. Patented Feb. 18, 1896.

ANDREW BERMMVL PHGTU'U'NQWASHINGTDN. D C,

Unirnn TATES PATENT Enron.

JOSEPH H. GREEN, OF COLUMBIA, SOUTH CAROLINA.

SAND-DRIER.

SPECIFICATION formingpart of Letters Patent No. 555,001, dated February18, 1896,

Application filed August 21, 1895. Serial No. 560,026. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH H. GREEN, a citizen of the United States,residing at Oolumbia, in the countyof Richland and State of SouthCarolina, have invented a new and useful Locomotive Sand-DryingAttachment, of which the following is a specification.

This invention relates to apparatus for drying sand, and aims to securea thorough expulsion of all moisture and to obviate the formation of acrust during the drying process, and to secure an automatic feed of thesand after the latter has been supplied to the body or storage-chamberto be dried.

The principal object is the utilization of exhaust or other steam whichusually is wasted and to apply the same in such manner as to attain thebest possible result and to secure a gradual heating of the sand fromthe receiving end of the body to the lower or discharge 7 end thereof.

Various other objects and advantages are contemplated and will beapparent from the subjoined description and the appended claims, and thenature of the improvement will be fully understood from the followingdescription and the drawings hereto attached, in which Figure 1 is aside elevation of an apparatus constructed in accordance with thisinvention. Fig. 2 is a top plan view thereof. Fig. 3 is a verticalcentral longitudinal section of the same. Fig. 4c is a transversesection on the line X X of Fig. 1, looking in the direction of thearrow.

The body 1 of the apparatus is oblong in plan and side elevation, andits longitudinal sides converge from the upper to the lower edges,giving to the body the appearance of a V form in cross-section. The bodywill be constructed of sheet metal of proper gage, so as to provideasubstantial structure, and its lower end will be open, so as to providea longitudinal passage 2 for the escape of, the sand after the latterhas become thoroughly dried. Longitudinal lips 3 extend in parallelismalong the opposite sides of the longitudinal passage 2, and these lipsstand apart a proper distance and prolong the said passage 2, so as togive proper direction to the sand as the latter escapes from the body.The body will be supported in any suitable manner, and, as

shown, it is mounted upon oppositely-inclined legs'a, which latter arestrengthened by transverse braces 5 and 6, the lower brace, 6,connecting the lower portions of the legs 4, and the upper braces, 5,connecting the legs with the opposite side of the body, as shown mostclearly in Fig. 4.

A bank of pipes 7 are located within the body 1, and through'them iscaused to circulate a current of steam, whereby the heat radiated fromthe said pipes will expel the moisture from the sand contained in thebody and dry the same. These pipes will be provided in two series andwill extend the full length of the body, and'the pipes of each se rieswill lie in the same plane and be alternately connected at their ends,so as to compel the steam to pass in a zigzag or tortuous path in itstravel therethrough.

The two sets or series of heating-pipes will be oppositelyinclined toconform to the con verging sides of the body, thereby concentrating theheat at the lower end of the body, which-will result in a thorough andeffective drying of the sand without baking or forming a crust thereon.The opposite ends of the heating-pipes project through the same end ofthe body and are provided with valves 8 for regulating or shutting offthe flow of steam or other heating medium which may be employed fordrying purposes. The heatingpipes will be supported within the body inany convenient manner, and, as shown, side racks 9 are secured to theconverging sides of the body, and their inner edges are notched tocorrespond with and receive the respective pipes of the series, andstraps 10 extend over the open sides of the notches and retain the pipestherein against accidental displacement.

A shaking screen 11 is located beneath the lower end of the body and issuspended by links or hangers 12 from inwardly-extending pins orbrackets 13 attached at their outer ends to the legs 4, and this screenis semicircular is cross-section and may be reciprocated in any desiredmanner. A lever 14: is fulcrumed at its lower end to a bracket 15projecting from one of the leg-supports and has connection with theadjacent end of the screen and extends vertically, so as to be readilygrasped when it is required to reciprocate the screen to prevent thelodgment of the sand therein.

The steam for heating the pipes may be derived from any suitable source,and it is not necessary to have a separate boiler to furnish the steam,as any engine that has a lay-over either during the day or night may becoupled to the pipes, and while the steam is blowing out of boiler itcan be utilized in the manner set forth for drying the sand. Theprovision of the screen immediately below the body obviatcs thenecessity of a second handling of the sand for the purpose of siftingafter it has been dried.

This apparatus can be attached to any ordinary water-station boilerwithout any perceptible increase in the amount of fuel used or waste ofsteam.

Any suitable receptacle or pit will be pro vided beneath the screen toreceive the prepared sand, and it will be seen that the sand treated bythe apparatus herein described will not alone be thoroughly dried, butwill be sifted or screened, thereby adapting it to be placed in thesand-box of the engine or locomotive without fear of the said boxbecoming clogged or choked by reason of gravel or other large particlesbeing contained in the sand.

The sand to be dried is placed within the body in any desired manner,and the heat radiated from the pipes therein will expel the moisture,and as soon as the sand becomes thoroughly dried it will passautomatically from the body through the discharge opening and enter thescreen and pass from thence into the receptacle placed for itsreception.

It is contemplated to use the apparatus for general purposes and fordrying sand in particular for any required purpose. Hence in theadapting of the invention for any particular requirement it is to beunderstood that various changes in the form, proportion, and minordetails of construction may be resorted to without departing from thespirit or sacrificing any of the advantages of this invention.

\Vhat is claimed is 1. In a drying apparatus of the character set forth,the combination with an oblong body to receive the commodity orsubstance to be dried, having converging sides leading to a longitudinaldischarge-opening formed between the lower ends of the said sides, oftwo sets of heating-pipes arranged at opposite angles and inclosing anunobstructed V- space, and having spaces between them and the sides ofthe body, substantially as shown for the purpose set forth.

2. A drier for the purposes set forth, comprising an oblong body havingconverging sides leading to a longitudinal dischargeopening, and havingparallel lips at the lower ends of the converging sides and betweenwhich the longitudinal passage extends, racks applied to the inner facesof the converging sides and notched at intervals in their opposingedges, heating-pipes supported in the notches of the racks and arrangedat opposite angles, and inclosing an unobstructed V- space and havingspaces between them and the converging sides, and straps extending overthe notched edges of the racks to secure the heating-pipes in place,substantially as set forth.

3. In combination an oblong body having converging sides and alongitudinal discharge-o 'iening formed between the lower ends of thesaid sides, two sets of heatingpipes arranged at opposite angles, and ascreen located below the lower end of the said body, substantially asset forth for the purpose described.

4:. The herein shown and described apparatus for the purpose describedcomprising an oblong body substantially V-shaped in cross-section andhaving a longitudinal discharge-opening at its lower end, two sets ofheating-pipes placed within the body and arranged at opposite angles,and having their end portions projecting and provided with. valves, ascreen suspended beneath the body and means for reci n'ocating orshaking the said screen, substantially as set forth for the purposespecified.

In testimony that I claim the foregoing as my own I have hereto afliXedmy signature in the presence of two witnesses.

JOSEPH 1i. GREEN. \Vitnesses:

J. W. MORGAN, J. l. DARBY.

